Pump.



C. G. WORTH INGTON. PUMP.

(Application filed June 21, 1898.)

Patented Nov. 5, |90I.

2 Sheets$heet I.

'35, 31 I Patented Nov. 5; I901;

0-. C. WORTHINGTON.

rum. 1 A nmibn al a Jam 21', 1898.) (m Model.)

2 Shaefv-Sheet 2.

UNITED STATES oiIARLEs o. WoE'rI-iINcToN,

PATENT ()FFICE.

or IRVINGTON, NEW YORK.

sPEoIFIcATIoN forming part of Letters Patent No. 686,181, dated November 5, 1901. Applioation'filed June 21; 1898. Serial No. 684,087. (No model.)

To 011% whmn, it may concern: i

3e it known that I, CHARLES C. Won'rHING- TON, a citizen of the United States, residing at Irvington, county of Westchester,and State of which is preferably a vertical pumpand adapted especially for use as a sinking-pump in' mining operations, where it is often necessary to sink-a deep small shaft, the especial objects-of the invention being to provide a pump of this class which shall be of great strength and high power and large valve area, while at the same time very small in cross-section, and to secure these results with all the working parts, and especially thevalves', readily and conveniently accessible for repair or replacement. The quick and convenient repair of any one of the valves is ofvery great importance in such constructions, as the constant and efficient working of such pumps is frequently essential to prevent flooding of the mine, and the stoppage of the pump for more than asmall period of time is likely to result in throwing out of work the entire mine ap-. paratus and force of operativeson account of such fiooding,-

A further object is to reduce to a minimum the number of loose parts and avoid the use of small loose parts-such as bolts, nuts,'&c.

liable to be dropped in opening the valvechambers for access to the valves, which is particularlyobjectionable in such sinkingpumps, as the part is likely to fall down the shaft and be lost, resulting in stoppage of the pump until the part can be replaced.

While the broader features of the invention may be embodied in a single-cylinder pump, .1 have aimed especially to provide a duplex pump of such form and construction that the high powerand capacity required in such sin-king-pump shall be secured withoutsubstan- I tially increasing the space occupied in the mine-shaft by a single-cylinder pump of equal 'power and capacity; and the invention consists in part of features of construction in duplex pumps.

a As afull understanding of the invention 'side, as usual in such duplex engines.

can best be given by a detailed description of a construction embodying the same, sucha description will now be given in connection with the accompanying drawings, showing all the features of the invention as applied in their preferred form, and the features forming the invention will then be specifically pointed outin the claims.

" In the drawings, Figure 1 is a front elevation of a construction showing all the features of the invention as applied in their preferred form to a duplexsinking-pump. Fig.2 isaside elevation of the same. Fig. 3 is a vertical section of the pump end on the line 3 of 'Fig. '1. Figs. 4 and 5 are cross-sections on respectively the broken lines land 5 of Figs. 1 and 3. Fig. 6 is a detail central section of one of the force- "valves and valvecaps therefor.

Referringto said drawings, the upper or steam end of the pump is similar in construction to pumps now wellknown and has the steamrcylinders A A on opposite sides, with the steam-inductionpipe B and exhaust-pipe O, which are arrangedso as to lie within the cross sectional area ofthe cylinders and valve-chests and with the usual cross-over valve movement D for actuating the steam valves of the cylinders from the piston-rods a. a, the steam-valves on each side being operated from the piston-rod of the opposite The pump is shown as provided with the supports 10 at the top of the st'eam cylinder's for suspending the pump by cables and as provided on its rear side with the bar E, secured to the steam and water ends,"and provided with hooks 11 for supporting the pump from the cross-timbers of the mine-shaft.

Referring now to the water end of the pump,in which the features forming the present invention are embodied, upon opposite sides of the pump corresponding to the steamcylinders A A are water-cylinders, which, as shown, are made separately for. opposite ends of the pumps, there being upper and lower cylinders F G and F G on opposite sides of the pump, in which cylinders work the double- 1 flanges to the cradles of the steam end, as

usual. The plungers b b are shown aspacked outside and between the pump ends in a common manner with the packing-glands 14.

The suction-main H extends verticallyfromv the foot of the pump upward on the rear side of the pump opposite the space between thepump-cylinders and is preferably formed, as shown, in two parts connected by-fianges 15, its opposite end-s being preferably formed integral with the upper and lower pump ends. The force main K is arranged between the lower pump-cylinders G G- and runs upward between the pump-plungers from the lower force-chambers to the upper pump-cylinders .F F, connecting with the upper force-chamber, and from the upper force-chamber the force-main K passes outward from between the cylinders 'on the rear side by a bend 16 and then upward in line with and above the suction-main H, so that the suction and force mains lie in the same planes on the rear side of the pump and within the area of a circle of such diameter as is required for the pump? cylinders and valve-chambers, as shown in Figs. 4 and 5. The portion of the force-main K that extends between the pump-plungers on opposite sides of the pump is preferably formed integral with one of the pump ends and detachably secured to the other pump end, being shown as integral with the upper pump end, or it may be made in two parts, as in the case'ot the suction-main H, so that the pump ends may readily be separated.

Referring now to the valve-chamber and valve'construction, L L and M M are the suction-chambers for the opposite sides and ends of the pump, and N O the force-chambers for opposite ends of the pump, the suction-chambers L L and M M being arranged onv the outer sides of the cylinders and in planes below the force-chambers N O and the forcechambers N 0 extending across the front side of the pump opposite the suction and force mains H K. Each of the suction-chambers L L. and M M is provided with 'a series of suction-valves 0, shown as" of a commoniform, these valves being arranged about the plunger and connecting the suction-chambers with 60,the-pulsation-chambers 17, which extend outward from the pump-cylinders proper, so as to occupy the upper part of 'the projection formed by the suction-chambers L L and M M. Four suction-valves are shown in each chamber; but it will be understood that this number may be varied.

Each of the force-chambers N 0 is provided with a series of force-valves d, shown as of the same common construction as the suction-valves 0, these valves d being arranged about the plungers and across the space between the plungers and opening from the pulsation-chambers 17 to the force-chambers N 0, from which the water is delivered through the force-main K, the pulsation-chambers occupying the lower part of the projections formed by the force-chambers N 0, being divided by partitions 18 for the opposite sides of the pump, so that three of these force-valves at each end of the pump belong to and operate for each .side of the pump. The pulsation-chambers are thus formed by the space between the suction-valves and the forcevalves, being above the suction-valves and below the force-valves. By this construction it will be seen that the force and suction valves are arranged circularly, or substantially so, about the cylinders, so as toreduce the crosssection of the pump, and both the force and suction valves are readily accessible from the upper end of the pump and without interference with one set of valves in examining or removing the other set of valves, as they are arranged in different planes longitudinally of the cylinders. In Figs. 4 and 5 is well illustrated the small. compact form of the pump end, all the partslbeing grouped so as to bring them into a substantially circular form in cross-area and within very small dimensions. While the preferred arrangement is that shown, it is to be understood that the relative position of the suction and force valves may be reversed, while retaining many of the important features of the construction.

Referring now to the parts by which the valves are held in position and each of the valves made accessible forrepair or replacement without removing large or heavy parts of the construction, the construction used in connection with all of the valves is the same, so that a single description of the valve shown in detail in Fig. 6 will apply to all, and the same references may be used for corresponding parts in connection with the difierent valves. The force-valve d (shown in Fig. 6) is held in place by a valve-cap e, which provides not only an abutment for the valve, but also a guide and seat for the spring w, andthese caps e are held in place by covers f, which are pivotally mounted, so as to swing into position to uncover any one of the valves and permit the valve-cap to be removed for access to and removal of the valve. These coversfare pivoted on bolts 19 on the outer edge of the valve-chamber outside the valves,

being shown as held thereon by nuts 1, and

the inner edges of the valve-covers f work under flanges or a continuous flange 20 on the valve-chamber inside the valves, sothat they may be swung on their pivot-bolts "19 to uncover the valve-caps e. Each of thecoversf is shown as covering two valve-caps e, al\

though it will be understood that a separate.

cover may be used foreaeh valve-cap, and

- only to the covers are provided with set-screws 21, which bear upon the tops of the valve-caps e, so that by settingdown these screws the caps are held firmlyin position and the valve-covers locked by the upward pressure of their ends upon the flange 20. By loosening the bolts 21, therefore, the valve-covers f maybe swung to the right or left for access to either one of the valve-caps e, held by its set-screws 21, and in replacing the parts it is necessary swing the valve-cover into position with itsedge under the flange 2O andturn down the set-screws 21 to secure the desired pressure on the valve-caps and lock'the covers f in position.

Theconstruct-ion of avalve-cover with two valves will .be found most convenient and compact; but a separate valve-cover .may be used for each valve or a single valvecover may be used for more thanjtwo valves,

if preferred, although the latter construction will be obgectlonable where compactness is desired on account of increasing the size of the valve-chamber or the necessity for' giving the cover a considerable movement out side of the valve-chamber'for access to the middle valves covered thereby. With a val vecover for two valves, as shown, the number of parts is reduced and the construction simplified and cheapened over a separate valvecover for each valve, while at the same time the valve-cover need not .be swung substantially outside of the areaof the valve-chamber forthe purpose of access to either of the two valves covered thereby, which is important in mine-pumps and elsewhere as reduc-- ing the cross-sectional space in the shaft required for access to the pump-valves, so that the size of the pump relatively to the mineshaft maybe increased over what would otherwise. be permissible.

Whilethe general construction of the pump shown, with the opposite ends of the pump by those arrangement of parts in the constructions formed separately and an integral end forming the cylinders for both sides ofthe pump, is preferred and forms a specific feature'of the invention, it will be understood that the broader features of the invention may be embodied in other constructions. It is to be understood, also, that modifications may be made skilled in the art in the form and shown without departing from the invention.

What I claim is-:

1. A pump having a suction-valve chamber and a force-valve chamber extending circumferentially of the pump-cylinder and series of suction and force valves in said chambers ar-- ranged circularly about the cylinder, said suction and force valve chambers being arranged in diiferent planes longitudinally of and transversely to the cylinder.

2. A pump having a'suction-valve chamber anda force-valve chamber extending circuni ferentially of the pump-cylinder and series of suction and force valves in said chambers arranged circularly about the cylinder, said suction and force valve chambers being arranged in difierent planes longitudinally of and trans-' versely to the cylinder, and a pulsation-chamber extending about the cylinder between the force and suction valves, substantially as described. Y i

3. A pump having a suction valve chamber and a force-valve chamber extending circumferentially of the cylinder and series of suction and force valves in said chambers ar-- ranged circularly about the cylinder, said suction and force valve chambers being arranged in dilferent plaiies longitudinally ofthe cylinder, and suction and force pipes ex tending alongthe cylinder in planes between the forceand suction valve chambers.

4. A double-acting pump having suction and force valve chambers at each end of the pump-cylinder extending circumferentially of the cylinder and series of suction-and force valves in said chambers. arranged circularly about said cylinder,said suction and force valve chambers being arranged in different planes longitudinally of the cylinder, and suction and force pipes extending along the cylinder in planes between the suction and force valve chambers.

,5. A pump'having two pump-cylinders arranged side by side, suction-valve chambers extending circumferentially of the cylinders and circularly-arranged series of valves in said chambers, force-valve chambers extending circumferentially of the cylinders in different planes longitudinally of the cylinders from the suction-valve chambers and forcevalves in said chambers, and suction and force pipes extending longitudinally of the .cylinders in planes between the suction and force valve chambers.

6. A double-acting pump having two pump cylinders arranged side by side, a force-pipeextending longitudinally of and between the cylinders, force-valve chambers arranged on one side of said pipe at opposite ends of the cylinders, a. suction-pipe extending longitudinally of the cylinders on the opposite side of the force*pipe from the force-chambers, and suction-valve chambers at opposite ends of the cylinders arranged in planes between the suction-pipe and force-valve chambers.

7. A double-acting pump having two pumpcylinders arranged side by side, a force-pipe extending longitudinally of and between the cylinders, force-valve chambers arranged on one side of said pipe at opposite ends of the cylinders, a suctionpipe extending longitudinally ofthe cylinders on the opposite side of the force-pipe from the force-chambers, sue tion-valve chambers at opposite ends of the cylinders arranged in planes between the suction-pipe and force-valvechambers-and an extension of" the force-pipe beyond thedelivery end of the cylinders inv line with the suction-pipe. A

8. A pump-cylinder having integral'therewith a suction-chamber, as L, extending about the cylinder, a force-chamber, as N, extending about the cylinder in diiferent planes longitudinally of the cylinder from the suctionchamber, and pulsation-chamber 17 between the suction and force chambers, substantially as shown and described.

9. Two pump-cylinders arranged side by side' and formed integral and havingintegral therewith suction-chambers, as L, L, extending about the cylinders,an integral forcechamber as N extending about the cylinders between the suction-chambers and across the space between the cylinders, and pulsationv chamber 17 between the suction. and force chambers, substantially as shown and described. 1

10. Two pump-cylinders arranged side by side and formed integral and having integral therewith suction-chambers, L, L, extending about the cylinders, an integral forcetherewith suction-chambers, as L, L, extending about the cylinders, an integral forcechamber as N extending about the cylinders between the suction-chambers and across the space between the cylinders, pulsation-chamber 17 between the suction and force chambers, force-pipe K between the cylinders having an extension out of line with the portion between the cylinders, and suction-pipe H in line with said extension, substantially as shown and described.

12. The combination with a valve-chamber and circular series of valves and valve-caps therefor, of swinging covers each arranged to cover two valve-caps and pivoted at their outer edges to swing in either direction, flange 20 under which the inner edges of the covers move, and cap-screws 21 in said covers, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of vtwo subscribing witnesses.

CHARLES 0. WORTHINGTON.

Witnesses:

ANDREW J. CALDWELL, B. W. PIERSON. 

